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The Recent Small Earthquakes around Lembang Fault, West Java, Bandung, Indonesia

Nugraha A.D.a, Supendi P.b, Prabowo B.S.a, Rosalia S.a, Erlanggaa, Husni Y.M.a, Widiyantoro S.a, Puspito N.T.a, Priyono A.a

a Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG), Indonesia

[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Published under licence by IOP Publishing Ltd.On May 14th and 18th, 2017 felt earthquakes were occurred around western part of Lembang area, Bandung, West Java, Indonesia with magnitude of M2.8 and M2.9, respectively. The first earthquake (M2.8) was felt by some people around epicenter area. We determined the earthquake location through re-picking of P-and S-wave arrival time recording by Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG), network. Earthquake location was determined by using Hypoellipse code that employs a single event determination method. We also conducted focal mechanism analysis to estimate the type of fault slip. The results indicate the hypocenters location in the north and south of the western part of Lembang fault with the focus depth of ∼ 5 km, respectively. Source mechanism solutions showed the type of earthquake is strike-slip fault. The occurrence of two recent small earthquakes need more attention about the activity of Lembang fault. The destructive earthquake related to displacement of the fault occurred on August 28, 2011 (M3.3) located at the western end of the Lembang fault. For further study, we have been deploying 6 temporary seismometers stations around Lembang fault in attempt to detect small events and to delineate subsurface seismic structure by applying tomography method.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]BMKG,Determination methods,Earthquake location,Focal mechanism,Seismic structure,Small earthquakes,Source mechanisms,Tomography methods[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]BMKG,Earthquake,Lembang fault[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]We thanks BMKG for data waveform used in this study. This study was supported by Research Grant PUPT-RISTEKDIKTI 2017.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/1742-6596/1204/1/012083[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]